55642495 has 16 divisors (see below), whose sum is σ = 68250240. Its totient is φ = 43537824.

The previous prime is 55642423. The next prime is 55642511. The reversal of 55642495 is 59424655.

It is a cyclic number.

It is not a de Polignac number, because 55642495 - 2⁹ = 55641983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54096 + ... + 55114.

It is an arithmetic number, because the mean of its divisors is an integer number (4265640).

Almost surely, 2^55642495 is an apocalyptic number.

55642495 is a deficient number, since it is larger than the sum of its proper divisors (12607745).

55642495 is a wasteful number, since it uses less digits than its factorization.

55642495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254.

The product of its digits is 216000, while the sum is 40.

The square root of 55642495 is about 7459.3897203458. The cubic root of 55642495 is about 381.7703520878.

The spelling of 55642495 in words is "fifty-five million, six hundred forty-two thousand, four hundred ninety-five".