25552754997 has 16 divisors (see below), whose sum is σ = 42477307392. Its totient is φ = 13274158320.

The previous prime is 25552754977. The next prime is 25552755013. The reversal of 25552754997 is 79945725552.

It is not a de Polignac number, because 25552754997 - 2⁶ = 25552754933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25552754997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25552754977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55308763 + ... + 55309224.

It is an arithmetic number, because the mean of its divisors is an integer number (2654831712).

Almost surely, 2^25552754997 is an apocalyptic number.

It is an amenable number.

25552754997 is a deficient number, since it is larger than the sum of its proper divisors (16924552395).

25552754997 is a wasteful number, since it uses less digits than its factorization.

25552754997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110618008.

The product of its digits is 39690000, while the sum is 60.

The spelling of 25552754997 in words is "twenty-five billion, five hundred fifty-two million, seven hundred fifty-four thousand, nine hundred ninety-seven".