55413550 has 24 divisors (see below), whose sum is σ = 105586992. Its totient is φ = 21624000.

The previous prime is 55413511. The next prime is 55413563. The reversal of 55413550 is 5531455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11466 + ... + 15565.

It is an arithmetic number, because the mean of its divisors is an integer number (4399458).

Almost surely, 2^55413550 is an apocalyptic number.

55413550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55413550 is a deficient number, since it is larger than the sum of its proper divisors (50173442).

55413550 is a wasteful number, since it uses less digits than its factorization.

55413550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27084 (or 27079 counting only the distinct ones).

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

The square root of 55413550 is about 7444.0278075784. The cubic root of 55413550 is about 381.2460252206.

The spelling of 55413550 in words is "fifty-five million, four hundred thirteen thousand, five hundred fifty".