25201470 has 64 divisors (see below), whose sum is σ = 70834176. Its totient is φ = 5617920.

The previous prime is 25201459. The next prime is 25201471. The reversal of 25201470 is 7410252.

It is a super-2 number, since 2×25201470² = 1270228180321800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25201471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7147 + ... + 10073.

It is an arithmetic number, because the mean of its divisors is an integer number (1106784).

Almost surely, 2^25201470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25201470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35417088).

25201470 is an abundant number, since it is smaller than the sum of its proper divisors (45632706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25201470 is a wasteful number, since it uses less digits than its factorization.

25201470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 25201470 is about 5020.1065725739. The cubic root of 25201470 is about 293.1851423762.

The spelling of 25201470 in words is "twenty-five million, two hundred one thousand, four hundred seventy".