25400530055616 has 56 divisors (see below), whose sum is σ = 67296021124224. Its totient is φ = 8455447822080.

The previous prime is 25400530055611. The next prime is 25400530055633. The reversal of 25400530055616 is 61655003500452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25400530055611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88884550 + ... + 89169861.

Almost surely, 2^{25400530055616} is an apocalyptic number.

It is an amenable number.

25400530055616 is an abundant number, since it is smaller than the sum of its proper divisors (41895491068608).

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

25400530055616 is a wasteful number, since it uses less digits than its factorization.

25400530055616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178055169 (or 178055159 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 25400530055616 in words is "twenty-five trillion, four hundred billion, five hundred thirty million, fifty-five thousand, six hundred sixteen".