55664152 has 8 divisors (see below), whose sum is σ = 104370300. Its totient is φ = 27832072.

The previous prime is 55664149. The next prime is 55664153. The reversal of 55664152 is 25146655.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55664153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3479002 + ... + 3479017.

Almost surely, 2^55664152 is an apocalyptic number.

It is an amenable number.

55664152 is a deficient number, since it is larger than the sum of its proper divisors (48706148).

55664152 is a wasteful number, since it uses less digits than its factorization.

55664152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958025 (or 6958021 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 55664152 is about 7460.8412394314. The cubic root of 55664152 is about 381.8198761555.

The spelling of 55664152 in words is "fifty-five million, six hundred sixty-four thousand, one hundred fifty-two".