25551057622 has 4 divisors (see below), whose sum is σ = 38326586436. Its totient is φ = 12775528810.

The previous prime is 25551057601. The next prime is 25551057629. The reversal of 25551057622 is 22675015552.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25551057629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6387764404 + ... + 6387764407.

It is an arithmetic number, because the mean of its divisors is an integer number (9581646609).

Almost surely, 2^25551057622 is an apocalyptic number.

25551057622 is a deficient number, since it is larger than the sum of its proper divisors (12775528814).

25551057622 is a wasteful number, since it uses less digits than its factorization.

25551057622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775528813.

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 25551057622 in words is "twenty-five billion, five hundred fifty-one million, fifty-seven thousand, six hundred twenty-two".