53489390 has 16 divisors (see below), whose sum is σ = 96528240. Its totient is φ = 21340800.

The previous prime is 53489339. The next prime is 53489411. The reversal of 53489390 is 9398435.

It is a super-2 number, since 2×53489390² = 5722229685144200, which contains 22 as substring.

It is a congruent 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, 2660 + ... + 10679.

It is an arithmetic number, because the mean of its divisors is an integer number (6033015).

Almost surely, 2^53489390 is an apocalyptic number.

53489390 is a deficient number, since it is larger than the sum of its proper divisors (43038850).

53489390 is a wasteful number, since it uses less digits than its factorization.

53489390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13747.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 53489390 is about 7313.6440985326. The cubic root of 53489390 is about 376.7811914091.

The spelling of 53489390 in words is "fifty-three million, four hundred eighty-nine thousand, three hundred ninety".