55970250 has 96 divisors (see below), whose sum is σ = 162616896. Its totient is φ = 12784800.

The previous prime is 55970249. The next prime is 55970267. The reversal of 55970250 is 5207955.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35989 + ... + 37511.

It is an arithmetic number, because the mean of its divisors is an integer number (1693926).

Almost surely, 2^55970250 is an apocalyptic number.

55970250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55970250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81308448).

55970250 is an abundant number, since it is smaller than the sum of its proper divisors (106646646).

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

55970250 is a wasteful number, since it uses less digits than its factorization.

55970250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 55970250 is about 7481.3267539922. The cubic root of 55970250 is about 382.5184749075.

The spelling of 55970250 in words is "fifty-five million, nine hundred seventy thousand, two hundred fifty".