25634552622 has 64 divisors (see below), whose sum is σ = 59036221440. Its totient is φ = 7268919264.

The previous prime is 25634552597. The next prime is 25634552659. The reversal of 25634552622 is 22625543652.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5741563 + ... + 5746025.

It is an arithmetic number, because the mean of its divisors is an integer number (922440960).

Almost surely, 2^25634552622 is an apocalyptic number.

25634552622 is an abundant number, since it is smaller than the sum of its proper divisors (33401668818).

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

25634552622 is a wasteful number, since it uses less digits than its factorization.

25634552622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477.

The product of its digits is 864000, while the sum is 42.

The spelling of 25634552622 in words is "twenty-five billion, six hundred thirty-four million, five hundred fifty-two thousand, six hundred twenty-two".