55291653 has 40 divisors (see below), whose sum is σ = 89385120. Its totient is φ = 33942240.

The previous prime is 55291651. The next prime is 55291669. The reversal of 55291653 is 35619255.

It is not a de Polignac number, because 55291653 - 2¹ = 55291651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55291651) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 56458 + ... + 57428.

It is an arithmetic number, because the mean of its divisors is an integer number (2234628).

Almost surely, 2^55291653 is an apocalyptic number.

It is an amenable number.

55291653 is a deficient number, since it is larger than the sum of its proper divisors (34093467).

55291653 is a wasteful number, since it uses less digits than its factorization.

55291653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1030 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 55291653 is about 7435.8357297617. The cubic root of 55291653 is about 380.9662689463.

The spelling of 55291653 in words is "fifty-five million, two hundred ninety-one thousand, six hundred fifty-three".