55470745 has 32 divisors (see below), whose sum is σ = 78817536. Its totient is φ = 37017600.

The previous prime is 55470743. The next prime is 55470757. The reversal of 55470745 is 54707455.

It is not a de Polignac number, because 55470745 - 2¹ = 55470743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55470743) 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, 37612 + ... + 39058.

It is an arithmetic number, because the mean of its divisors is an integer number (2463048).

Almost surely, 2^55470745 is an apocalyptic number.

55470745 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55470745 is a deficient number, since it is larger than the sum of its proper divisors (23346791).

55470745 is a wasteful number, since it uses less digits than its factorization.

55470745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521.

The product of its (nonzero) digits is 98000, while the sum is 37.

The square root of 55470745 is about 7447.8684870237. The cubic root of 55470745 is about 381.3771475940.

The spelling of 55470745 in words is "fifty-five million, four hundred seventy thousand, seven hundred forty-five".