55453650 has 48 divisors (see below), whose sum is σ = 157174464. Its totient is φ = 12674880.

The previous prime is 55453591. The next prime is 55453691. The reversal of 55453650 is 5635455.

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, 25357 + ... + 27456.

It is an arithmetic number, because the mean of its divisors is an integer number (3274468).

Almost surely, 2^55453650 is an apocalyptic number.

55453650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55453650 is an abundant number, since it is smaller than the sum of its proper divisors (101720814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55453650 is a wasteful number, since it uses less digits than its factorization.

55453650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52835 (or 52830 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 55453650 is about 7446.7207548021. The cubic root of 55453650 is about 381.3379659065.

The spelling of 55453650 in words is "fifty-five million, four hundred fifty-three thousand, six hundred fifty".