25520342 has 16 divisors (see below), whose sum is σ = 39578112. Its totient is φ = 12334440.

The previous prime is 25520333. The next prime is 25520353. The reversal of 25520342 is 24302552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6167 + ... + 9437.

It is an arithmetic number, because the mean of its divisors is an integer number (2473632).

Almost surely, 2^25520342 is an apocalyptic number.

25520342 is a deficient number, since it is larger than the sum of its proper divisors (14057770).

25520342 is a wasteful number, since it uses less digits than its factorization.

25520342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 25520342 is about 5051.7662257868. The cubic root of 25520342 is about 294.4165120873.

Adding to 25520342 its reverse (24302552), we get a palindrome (49822894).

The spelling of 25520342 in words is "twenty-five million, five hundred twenty thousand, three hundred forty-two".