53023765 has 16 divisors (see below), whose sum is σ = 67620528. Its totient is φ = 39776256.

The previous prime is 53023753. The next prime is 53023771. The reversal of 53023765 is 56732035.

It can be written as a sum of positive squares in 8 ways, for example, as 1270129 + 51753636 = 1127^2 + 7194^2 .

It is a cyclic number.

It is not a de Polignac number, because 53023765 - 2⁹ = 53023253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25609 + ... + 27601.

It is an arithmetic number, because the mean of its divisors is an integer number (4226283).

Almost surely, 2^53023765 is an apocalyptic number.

It is an amenable number.

53023765 is a deficient number, since it is larger than the sum of its proper divisors (14596763).

53023765 is a wasteful number, since it uses less digits than its factorization.

53023765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 53023765 is about 7281.7418932560. The cubic root of 53023765 is about 375.6847105113.

The spelling of 53023765 in words is "fifty-three million, twenty-three thousand, seven hundred sixty-five".