53136480 has 96 divisors (see below), whose sum is σ = 172827648. Its totient is φ = 13708800.

The previous prime is 53136469. The next prime is 53136541. The reversal of 53136480 is 8463135.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13095 + ... + 16665.

It is an arithmetic number, because the mean of its divisors is an integer number (1800288).

Almost surely, 2^53136480 is an apocalyptic number.

53136480 is the 5952-nd pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53136480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86413824).

53136480 is an abundant number, since it is smaller than the sum of its proper divisors (119691168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53136480 is a wasteful number, since it uses less digits than its factorization.

53136480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3620 (or 3612 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 53136480 is about 7289.4773475195. The cubic root of 53136480 is about 375.9507253974.

The spelling of 53136480 in words is "fifty-three million, one hundred thirty-six thousand, four hundred eighty".