55767751 has 4 divisors (see below), whose sum is σ = 60057592. Its totient is φ = 51477912.

The previous prime is 55767743. The next prime is 55767787. The reversal of 55767751 is 15776755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55767751 - 2³ = 55767743 is a prime.

It is a super-2 number, since 2×55767751² = 6220084103196002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55767698 and 55767707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55765751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144901 + ... + 2144926.

It is an arithmetic number, because the mean of its divisors is an integer number (15014398).

Almost surely, 2^55767751 is an apocalyptic number.

55767751 is a deficient number, since it is larger than the sum of its proper divisors (4289841).

55767751 is a wasteful number, since it uses less digits than its factorization.

55767751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289840.

The product of its digits is 257250, while the sum is 43.

The square root of 55767751 is about 7467.7808618089. The cubic root of 55767751 is about 382.0566032732.

The spelling of 55767751 in words is "fifty-five million, seven hundred sixty-seven thousand, seven hundred fifty-one".