55415064 has 32 divisors (see below), whose sum is σ = 139915440. Its totient is φ = 18288000.

The previous prime is 55415057. The next prime is 55415069. The reversal of 55415064 is 46051455.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55415069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9007 + ... + 13854.

Almost surely, 2^55415064 is an apocalyptic number.

It is an amenable number.

55415064 is an abundant number, since it is smaller than the sum of its proper divisors (84500376).

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

55415064 is a wasteful number, since it uses less digits than its factorization.

55415064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22971 (or 22967 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55415064 is about 7444.1294991423. The cubic root of 55415064 is about 381.2494973029.

The spelling of 55415064 in words is "fifty-five million, four hundred fifteen thousand, sixty-four".