55451508 has 24 divisors (see below), whose sum is σ = 147870912. Its totient is φ = 15843264.

The previous prime is 55451507. The next prime is 55451521. The reversal of 55451508 is 80515455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55451503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329985 + ... + 330152.

It is an arithmetic number, because the mean of its divisors is an integer number (6161288).

Almost surely, 2^55451508 is an apocalyptic number.

It is an amenable number.

55451508 is an abundant number, since it is smaller than the sum of its proper divisors (92419404).

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

55451508 is a wasteful number, since it uses less digits than its factorization.

55451508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660151 (or 660149 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 55451508 is about 7446.5769317184. The cubic root of 55451508 is about 381.3330558814. Note that the first 3 decimals are identical.

The spelling of 55451508 in words is "fifty-five million, four hundred fifty-one thousand, five hundred eight".