55767554 has 16 divisors (see below), whose sum is σ = 86090040. Its totient is φ = 27081600.

The previous prime is 55767539. The next prime is 55767557. The reversal of 55767554 is 45576755.

It can be written as a sum of positive squares in 4 ways, for example, as 49632025 + 6135529 = 7045^2 + 2477^2 .

It is a super-2 number, since 2×55767554² = 6220040158285832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55767557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8102 + ... + 13310.

Almost surely, 2^55767554 is an apocalyptic number.

55767554 is a deficient number, since it is larger than the sum of its proper divisors (30322486).

55767554 is a wasteful number, since it uses less digits than its factorization.

55767554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5365.

The product of its digits is 735000, while the sum is 44.

The square root of 55767554 is about 7467.7676718013. The cubic root of 55767554 is about 382.0561534001.

The spelling of 55767554 in words is "fifty-five million, seven hundred sixty-seven thousand, five hundred fifty-four".