53929725 has 12 divisors (see below), whose sum is σ = 89163936. Its totient is φ = 28762480.

The previous prime is 53929723. The next prime is 53929741. The reversal of 53929725 is 52792935.

It is not a de Polignac number, because 53929725 - 2¹ = 53929723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53929721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359457 + ... + 359606.

It is an arithmetic number, because the mean of its divisors is an integer number (7430328).

Almost surely, 2^53929725 is an apocalyptic number.

It is an amenable number.

53929725 is a deficient number, since it is larger than the sum of its proper divisors (35234211).

53929725 is a wasteful number, since it uses less digits than its factorization.

53929725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719076 (or 719071 counting only the distinct ones).

The product of its digits is 170100, while the sum is 42.

The square root of 53929725 is about 7343.6860635515. The cubic root of 53929725 is about 377.8122790642.

The spelling of 53929725 in words is "fifty-three million, nine hundred twenty-nine thousand, seven hundred twenty-five".