53421560 has 32 divisors (see below), whose sum is σ = 120422160. Its totient is φ = 21328896.

The previous prime is 53421553. The next prime is 53421583. The reversal of 53421560 is 6512435.

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, 30632 + ... + 32328.

Almost surely, 2^53421560 is an apocalyptic number.

It is an amenable number.

53421560 is an abundant number, since it is smaller than the sum of its proper divisors (67000600).

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

53421560 is a wasteful number, since it uses less digits than its factorization.

53421560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495 (or 2491 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 53421560 is about 7309.0054042941. The cubic root of 53421560 is about 376.6218583849.

Adding to 53421560 its reverse (6512435), we get a palindrome (59933995).

The spelling of 53421560 in words is "fifty-three million, four hundred twenty-one thousand, five hundred sixty".