55602505 has 24 divisors (see below), whose sum is σ = 78271488. Its totient is φ = 37806048.

The previous prime is 55602497. The next prime is 55602511. The reversal of 55602505 is 50520655.

It is not a de Polignac number, because 55602505 - 2³ = 55602497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30222 + ... + 32008.

It is an arithmetic number, because the mean of its divisors is an integer number (3261312).

Almost surely, 2^55602505 is an apocalyptic number.

It is an amenable number.

55602505 is a deficient number, since it is larger than the sum of its proper divisors (22668983).

55602505 is a wasteful number, since it uses less digits than its factorization.

55602505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 55602505 is about 7456.7087243636. The cubic root of 55602505 is about 381.6788713153.

The spelling of 55602505 in words is "fifty-five million, six hundred two thousand, five hundred five".