53977365 has 24 divisors (see below), whose sum is σ = 100758840. Its totient is φ = 26573184.

The previous prime is 53977351. The next prime is 53977369. The reversal of 53977365 is 56377935.

53977365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1313316 + 52664049 = 1146^2 + 7257^2 .

It is not a de Polignac number, because 53977365 - 2⁷ = 53977237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 53977365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53977369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45550 + ... + 46719.

It is an arithmetic number, because the mean of its divisors is an integer number (4198285).

Almost surely, 2^53977365 is an apocalyptic number.

It is an amenable number.

53977365 is a deficient number, since it is larger than the sum of its proper divisors (46781475).

53977365 is a wasteful number, since it uses less digits than its factorization.

53977365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92293 (or 92290 counting only the distinct ones).

The product of its digits is 595350, while the sum is 45.

The square root of 53977365 is about 7346.9289502485. The cubic root of 53977365 is about 377.9234958971.

The spelling of 53977365 in words is "fifty-three million, nine hundred seventy-seven thousand, three hundred sixty-five".