55426464 has 48 divisors (see below), whose sum is σ = 161663040. Its totient is φ = 18475200.

The previous prime is 55426457. The next prime is 55426471. The reversal of 55426464 is 46462455.

55426464 is a `hidden beast` number, since 5 + 5 + 4 + 2 + 646 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (55426457) and next prime (55426471).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31212 + ... + 32939.

It is an arithmetic number, because the mean of its divisors is an integer number (3367980).

Almost surely, 2^55426464 is an apocalyptic number.

55426464 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55426464 is an abundant number, since it is smaller than the sum of its proper divisors (106236576).

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

55426464 is a wasteful number, since it uses less digits than its factorization.

55426464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64170 (or 64156 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 55426464 is about 7444.8951638018. The cubic root of 55426464 is about 381.2756390891.

The spelling of 55426464 in words is "fifty-five million, four hundred twenty-six thousand, four hundred sixty-four".