55445451 has 8 divisors (see below), whose sum is σ = 74062224. Its totient is φ = 36896160.

The previous prime is 55445443. The next prime is 55445461. The reversal of 55445451 is 15454455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55445451 - 2³ = 55445443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55445461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14920 + ... + 18261.

It is an arithmetic number, because the mean of its divisors is an integer number (9257778).

Almost surely, 2^55445451 is an apocalyptic number.

55445451 is a deficient number, since it is larger than the sum of its proper divisors (18616773).

55445451 is a wasteful number, since it uses less digits than its factorization.

55445451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33741.

The product of its digits is 40000, while the sum is 33.

The square root of 55445451 is about 7446.1702236787. The cubic root of 55445451 is about 381.3191709664.

The spelling of 55445451 in words is "fifty-five million, four hundred forty-five thousand, four hundred fifty-one".