53091535 has 16 divisors (see below), whose sum is σ = 72930816. Its totient is φ = 36345888.

The previous prime is 53091523. The next prime is 53091557. The reversal of 53091535 is 53519035.

It is a cyclic number.

It is not a de Polignac number, because 53091535 - 2⁵ = 53091503 is a prime.

It is a super-4 number, since 4×53091535⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 53091497 and 53091506.

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, 36492 + ... + 37918.

It is an arithmetic number, because the mean of its divisors is an integer number (4558176).

Almost surely, 2^53091535 is an apocalyptic number.

53091535 is a deficient number, since it is larger than the sum of its proper divisors (19839281).

53091535 is a wasteful number, since it uses less digits than its factorization.

53091535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502.

The product of its (nonzero) digits is 10125, while the sum is 31.

The square root of 53091535 is about 7286.3938268529. The cubic root of 53091535 is about 375.8446973499.

The spelling of 53091535 in words is "fifty-three million, ninety-one thousand, five hundred thirty-five".