25517282054 has 32 divisors (see below), whose sum is σ = 42584330880. Its totient is φ = 11369670400.

The previous prime is 25517282051. The next prime is 25517282099. The reversal of 25517282054 is 45028271552.

It is a super-2 number, since 2×25517282054² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25517282051) 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, 430349 + ... + 486039.

It is an arithmetic number, because the mean of its divisors is an integer number (1330760340).

Almost surely, 2^25517282054 is an apocalyptic number.

25517282054 is a deficient number, since it is larger than the sum of its proper divisors (17067048826).

25517282054 is a wasteful number, since it uses less digits than its factorization.

25517282054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56116.

The product of its (nonzero) digits is 224000, while the sum is 41.

The spelling of 25517282054 in words is "twenty-five billion, five hundred seventeen million, two hundred eighty-two thousand, fifty-four".