55777425 has 96 divisors (see below), whose sum is σ = 110242944. Its totient is φ = 24576000.

The previous prime is 55777409. The next prime is 55777451. The reversal of 55777425 is 52477755.

It is not a de Polignac number, because 55777425 - 2⁴ = 55777409 is a prime.

It is a super-2 number, since 2×55777425² = 6222242279261250, which contains 22 as substring.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 574977 + ... + 575073.

It is an arithmetic number, because the mean of its divisors is an integer number (1148364).

Almost surely, 2^55777425 is an apocalyptic number.

55777425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55777425 is a deficient number, since it is larger than the sum of its proper divisors (54465519).

55777425 is a wasteful number, since it uses less digits than its factorization.

55777425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 174 counting only the distinct ones).

The product of its digits is 343000, while the sum is 42.

The square root of 55777425 is about 7468.4285495678. The cubic root of 55777425 is about 382.0786937097.

It can be divided in two parts, 5577 and 7425, that multiplied together give a square (41409225 = 6435²).

The spelling of 55777425 in words is "fifty-five million, seven hundred seventy-seven thousand, four hundred twenty-five".