54896687457 has 16 divisors (see below), whose sum is σ = 74091438720. Its totient is φ = 36150680192.

The previous prime is 54896687413. The next prime is 54896687471. The reversal of 54896687457 is 75478669845.

It is a cyclic number.

It is not a de Polignac number, because 54896687457 - 2¹⁵ = 54896654689 is a prime.

It is a super-2 number, since 2×54896687457² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54896687391 and 54896687400.

It is not an unprimeable number, because it can be changed into a prime (54896680457) 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, 168988 + ... + 371954.

It is an arithmetic number, because the mean of its divisors is an integer number (4630714920).

Almost surely, 2^54896687457 is an apocalyptic number.

It is an amenable number.

54896687457 is a deficient number, since it is larger than the sum of its proper divisors (19194751263).

54896687457 is a wasteful number, since it uses less digits than its factorization.

54896687457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204072.

The product of its digits is 406425600, while the sum is 69.

The spelling of 54896687457 in words is "fifty-four billion, eight hundred ninety-six million, six hundred eighty-seven thousand, four hundred fifty-seven".