55155004451 has 16 divisors (see below), whose sum is σ = 57731401728. Its totient is φ = 52638388800.

The previous prime is 55155004447. The next prime is 55155004501. The reversal of 55155004451 is 15440055155.

It is a cyclic number.

It is not a de Polignac number, because 55155004451 - 2² = 55155004447 is a prime.

It is a super-2 number, since 2×55155004451² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55155004441) 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, 4586036 + ... + 4598046.

It is an arithmetic number, because the mean of its divisors is an integer number (3608212608).

Almost surely, 2^55155004451 is an apocalyptic number.

55155004451 is a deficient number, since it is larger than the sum of its proper divisors (2576397277).

55155004451 is a wasteful number, since it uses less digits than its factorization.

55155004451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14482.

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 55155004451 in words is "fifty-five billion, one hundred fifty-five million, four thousand, four hundred fifty-one".