55255013450431 has 4 divisors (see below), whose sum is σ = 55256607364392. Its totient is φ = 55253419536472.

The previous prime is 55255013450327. The next prime is 55255013450437. The reversal of 55255013450431 is 13405431055255.

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

It is a cyclic number.

It is not a de Polignac number, because 55255013450431 - 2²⁷ = 55254879232703 is a prime.

It is a super-2 number, since 2×55255013450431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55255013450437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796904980 + ... + 796974313.

It is an arithmetic number, because the mean of its divisors is an integer number (13814151841098).

Almost surely, 2^{55255013450431} is an apocalyptic number.

55255013450431 is a deficient number, since it is larger than the sum of its proper divisors (1593913961).

55255013450431 is a wasteful number, since it uses less digits than its factorization.

55255013450431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593913960.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 55255013450431 in words is "fifty-five trillion, two hundred fifty-five billion, thirteen million, four hundred fifty thousand, four hundred thirty-one".