53681970 has 16 divisors (see below), whose sum is σ = 128836800. Its totient is φ = 14315184.

The previous prime is 53681963. The next prime is 53682019. The reversal of 53681970 is 7918635.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894670 + ... + 894729.

It is an arithmetic number, because the mean of its divisors is an integer number (8052300).

Almost surely, 2^53681970 is an apocalyptic number.

53681970 is an abundant number, since it is smaller than the sum of its proper divisors (75154830).

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

53681970 is a wasteful number, since it uses less digits than its factorization.

53681970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789409.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 53681970 is about 7326.7980728283. The cubic root of 53681970 is about 377.2328299786.

The spelling of 53681970 in words is "fifty-three million, six hundred eighty-one thousand, nine hundred seventy".