53086490 has 16 divisors (see below), whose sum is σ = 98138952. Its totient is φ = 20660544.

The previous prime is 53086471. The next prime is 53086493. The reversal of 53086490 is 9468035.

It can be written as a sum of positive squares in 4 ways, for example, as 37222201 + 15864289 = 6101^2 + 3983^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53086490.

It is not an unprimeable number, because it can be changed into a prime (53086493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71369 + ... + 72108.

Almost surely, 2^53086490 is an apocalyptic number.

53086490 is a deficient number, since it is larger than the sum of its proper divisors (45052462).

53086490 is a wasteful number, since it uses less digits than its factorization.

53086490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143521.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 53086490 is about 7286.0476254277. The cubic root of 53086490 is about 375.8327921465.

The spelling of 53086490 in words is "fifty-three million, eighty-six thousand, four hundred ninety".