55435450 has 48 divisors (see below), whose sum is σ = 118742400. Its totient is φ = 18861120.

The previous prime is 55435447. The next prime is 55435459. The reversal of 55435450 is 5453455.

It is not an unprimeable number, because it can be changed into a prime (55435459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51619 + ... + 52681.

It is an arithmetic number, because the mean of its divisors is an integer number (2473800).

Almost surely, 2^55435450 is an apocalyptic number.

55435450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55435450 is an abundant number, since it is smaller than the sum of its proper divisors (63306950).

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

55435450 is a wasteful number, since it uses less digits than its factorization.

55435450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1226 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 55435450 is about 7445.4986401181. The cubic root of 55435450 is about 381.2962427112.

The spelling of 55435450 in words is "fifty-five million, four hundred thirty-five thousand, four hundred fifty".