55360731 has 8 divisors (see below), whose sum is σ = 74378304. Its totient is φ = 36625160.

The previous prime is 55360729. The next prime is 55360757. The reversal of 55360731 is 13706355.

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

It is a cyclic number.

It is not a de Polignac number, because 55360731 - 2¹ = 55360729 is a prime.

It is a super-2 number, since 2×55360731² = 6129621073708722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55320731) 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, 70041 + ... + 70826.

It is an arithmetic number, because the mean of its divisors is an integer number (9297288).

Almost surely, 2^55360731 is an apocalyptic number.

55360731 is a deficient number, since it is larger than the sum of its proper divisors (19017573).

55360731 is a wasteful number, since it uses less digits than its factorization.

55360731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141001.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 55360731 is about 7440.4792184375. The cubic root of 55360731 is about 381.1248548855.

The spelling of 55360731 in words is "fifty-five million, three hundred sixty thousand, seven hundred thirty-one".