55451045 has 32 divisors (see below), whose sum is σ = 77414400. Its totient is φ = 37787904.

The previous prime is 55451041. The next prime is 55451047. The reversal of 55451045 is 54015455.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55451045 - 2² = 55451041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 55450999 and 55451017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55451041) 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, 42716 + ... + 43994.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^55451045 is an apocalyptic number.

It is an amenable number.

55451045 is a deficient number, since it is larger than the sum of its proper divisors (21963355).

55451045 is a wasteful number, since it uses less digits than its factorization.

55451045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 55451045 is about 7446.5458435438. The cubic root of 55451045 is about 381.3319945475.

The spelling of 55451045 in words is "fifty-five million, four hundred fifty-one thousand, forty-five".