53506761 has 16 divisors (see below), whose sum is σ = 88946688. Its totient is φ = 27795600.

The previous prime is 53506757. The next prime is 53506771. The reversal of 53506761 is 16760535.

It is not a de Polignac number, because 53506761 - 2² = 53506757 is a prime.

It is a super-2 number, since 2×53506761² = 5725946945422242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (53506771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115585 + ... + 116046.

It is an arithmetic number, because the mean of its divisors is an integer number (5559168).

Almost surely, 2^53506761 is an apocalyptic number.

It is an amenable number.

53506761 is a deficient number, since it is larger than the sum of its proper divisors (35439927).

53506761 is a wasteful number, since it uses less digits than its factorization.

53506761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231652.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 53506761 is about 7314.8315770085. The cubic root of 53506761 is about 376.8219743114.

The spelling of 53506761 in words is "fifty-three million, five hundred six thousand, seven hundred sixty-one".