55372161 has 8 divisors (see below), whose sum is σ = 79508800. Its totient is φ = 34075152.

The previous prime is 55372123. The next prime is 55372171. The reversal of 55372161 is 16127355.

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

It is not a de Polignac number, because 55372161 - 2¹⁵ = 55339393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55372171) 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, 709861 + ... + 709938.

It is an arithmetic number, because the mean of its divisors is an integer number (9938600).

Almost surely, 2^55372161 is an apocalyptic number.

It is an amenable number.

55372161 is a deficient number, since it is larger than the sum of its proper divisors (24136639).

55372161 is a wasteful number, since it uses less digits than its factorization.

55372161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419815.

The product of its digits is 6300, while the sum is 30.

The square root of 55372161 is about 7441.2472744830. The cubic root of 55372161 is about 381.1510826059.

The spelling of 55372161 in words is "fifty-five million, three hundred seventy-two thousand, one hundred sixty-one".