55023658 has 16 divisors (see below), whose sum is σ = 87984000. Its totient is φ = 25732512.

The previous prime is 55023653. The next prime is 55023671. The reversal of 55023658 is 85632055.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55023653) 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, 6163 + ... + 12166.

It is an arithmetic number, because the mean of its divisors is an integer number (5499000).

Almost surely, 2^55023658 is an apocalyptic number.

55023658 is a deficient number, since it is larger than the sum of its proper divisors (32960342).

55023658 is a wasteful number, since it uses less digits than its factorization.

55023658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18429.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 55023658 is about 7417.7933376443. The cubic root of 55023658 is about 380.3497656836.

The spelling of 55023658 in words is "fifty-five million, twenty-three thousand, six hundred fifty-eight".