18100552 has 8 divisors (see below), whose sum is σ = 33938550. Its totient is φ = 9050272.

The previous prime is 18100547. The next prime is 18100573. The reversal of 18100552 is 25500181.

It can be written as a sum of positive squares in only one way, i.e., 16597476 + 1503076 = 4074^2 + 1226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1131277 + ... + 1131292.

Almost surely, 2^18100552 is an apocalyptic number.

It is an amenable number.

18100552 is a deficient number, since it is larger than the sum of its proper divisors (15837998).

18100552 is a wasteful number, since it uses less digits than its factorization.

18100552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262575 (or 2262571 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 18100552 is about 4254.4743506102. The cubic root of 18100552 is about 262.5612349962.

The spelling of 18100552 in words is "eighteen million, one hundred thousand, five hundred fifty-two".