55457405369545 has 32 divisors (see below), whose sum is σ = 66793289472000. Its totient is φ = 44203355598336.

The previous prime is 55457405369543. The next prime is 55457405369549. The reversal of 55457405369545 is 54596350475455.

It is a cyclic number.

It is not a de Polignac number, because 55457405369545 - 2¹ = 55457405369543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55457405369543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4564765131 + ... + 4564777279.

It is an arithmetic number, because the mean of its divisors is an integer number (2087290296000).

Almost surely, 2^{55457405369545} is an apocalyptic number.

It is an amenable number.

55457405369545 is a deficient number, since it is larger than the sum of its proper divisors (11335884102455).

55457405369545 is a wasteful number, since it uses less digits than its factorization.

55457405369545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15657.

The product of its (nonzero) digits is 1134000000, while the sum is 67.

The spelling of 55457405369545 in words is "fifty-five trillion, four hundred fifty-seven billion, four hundred five million, three hundred sixty-nine thousand, five hundred forty-five".