53078765 has 16 divisors (see below), whose sum is σ = 64606080. Its totient is φ = 41860800.

The previous prime is 53078713. The next prime is 53078771. The reversal of 53078765 is 56787035.

It is not a de Polignac number, because 53078765 - 2¹⁰ = 53077741 is a prime.

It is a Curzon 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, 172742 + ... + 173048.

It is an arithmetic number, because the mean of its divisors is an integer number (4037880).

Almost surely, 2^53078765 is an apocalyptic number.

It is an amenable number.

53078765 is a deficient number, since it is larger than the sum of its proper divisors (11527315).

53078765 is a wasteful number, since it uses less digits than its factorization.

53078765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 53078765 is about 7285.5174833364. The cubic root of 53078765 is about 375.8145612108.

The spelling of 53078765 in words is "fifty-three million, seventy-eight thousand, seven hundred sixty-five".