55927530 has 32 divisors (see below), whose sum is σ = 149140800. Its totient is φ = 14913936.

The previous prime is 55927523. The next prime is 55927537. The reversal of 55927530 is 3572955.

55927530 is a `hidden beast` number, since 559 + 2 + 75 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (55927523) and next prime (55927537).

It is a super-2 number, since 2×55927530² = 6255777223801800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55927537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103300 + ... + 103839.

It is an arithmetic number, because the mean of its divisors is an integer number (4660650).

Almost surely, 2^55927530 is an apocalyptic number.

55927530 is an abundant number, since it is smaller than the sum of its proper divisors (93213270).

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

55927530 is a wasteful number, since it uses less digits than its factorization.

55927530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207155 (or 207149 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 36.

The square root of 55927530 is about 7478.4711004322. The cubic root of 55927530 is about 382.4211294514.

The spelling of 55927530 in words is "fifty-five million, nine hundred twenty-seven thousand, five hundred thirty".