53405672 has 8 divisors (see below), whose sum is σ = 100135650. Its totient is φ = 26702832.

The previous prime is 53405663. The next prime is 53405711. The reversal of 53405672 is 27650435.

It can be written as a sum of positive squares in only one way, i.e., 50495236 + 2910436 = 7106^2 + 1706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3337847 + ... + 3337862.

Almost surely, 2^53405672 is an apocalyptic number.

It is an amenable number.

53405672 is a deficient number, since it is larger than the sum of its proper divisors (46729978).

53405672 is a wasteful number, since it uses less digits than its factorization.

53405672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6675715 (or 6675711 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 53405672 is about 7307.9184450841. The cubic root of 53405672 is about 376.5845178967.

The spelling of 53405672 in words is "fifty-three million, four hundred five thousand, six hundred seventy-two".