53146540 has 12 divisors (see below), whose sum is σ = 111607776. Its totient is φ = 21258608.

The previous prime is 53146523. The next prime is 53146543. The reversal of 53146540 is 4564135.

It is a junction number, because it is equal to n+sod(n) for n = 53146499 and 53146508.

It is not an unprimeable number, because it can be changed into a prime (53146543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328644 + ... + 1328683.

It is an arithmetic number, because the mean of its divisors is an integer number (9300648).

Almost surely, 2^53146540 is an apocalyptic number.

It is an amenable number.

53146540 is an abundant number, since it is smaller than the sum of its proper divisors (58461236).

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

53146540 is a wasteful number, since it uses less digits than its factorization.

53146540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657336 (or 2657334 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 53146540 is about 7290.1673506169. The cubic root of 53146540 is about 375.9744493729.

The spelling of 53146540 in words is "fifty-three million, one hundred forty-six thousand, five hundred forty".