55207751 has 8 divisors (see below), whose sum is σ = 58834944. Its totient is φ = 51682840.

The previous prime is 55207741. The next prime is 55207753. The reversal of 55207751 is 15770255.

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

It is not a de Polignac number, because 55207751 - 2¹⁸ = 54945607 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 (55207753) 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, 24455 + ... + 26616.

It is an arithmetic number, because the mean of its divisors is an integer number (7354368).

Almost surely, 2^55207751 is an apocalyptic number.

55207751 is a deficient number, since it is larger than the sum of its proper divisors (3627193).

55207751 is a wasteful number, since it uses less digits than its factorization.

55207751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51141.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 55207751 is about 7430.1918548581. The cubic root of 55207751 is about 380.7734730384.

The spelling of 55207751 in words is "fifty-five million, two hundred seven thousand, seven hundred fifty-one".