55630751 has 8 divisors (see below), whose sum is σ = 61979904. Its totient is φ = 49496920.

The previous prime is 55630739. The next prime is 55630763. The reversal of 55630751 is 15703655.

It is an interprime number because it is at equal distance from previous prime (55630739) and next prime (55630763).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-55630751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55630781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53285 + ... + 54318.

It is an arithmetic number, because the mean of its divisors is an integer number (7747488).

Almost surely, 2^55630751 is an apocalyptic number.

55630751 is a deficient number, since it is larger than the sum of its proper divisors (6349153).

55630751 is a wasteful number, since it uses less digits than its factorization.

55630751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107661.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 55630751 is about 7458.6024830393. The cubic root of 55630751 is about 381.7434911638.

The spelling of 55630751 in words is "fifty-five million, six hundred thirty thousand, seven hundred fifty-one".