53921274 has 32 divisors (see below), whose sum is σ = 118825920. Its totient is φ = 16176000.

The previous prime is 53921249. The next prime is 53921291. The reversal of 53921274 is 47212935.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2622 + ... + 10710.

It is an arithmetic number, because the mean of its divisors is an integer number (3713310).

Almost surely, 2^53921274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53921274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59412960).

53921274 is an abundant number, since it is smaller than the sum of its proper divisors (64904646).

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

53921274 is a wasteful number, since it uses less digits than its factorization.

53921274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8206.

The product of its digits is 15120, while the sum is 33.

The square root of 53921274 is about 7343.1106487646. The cubic root of 53921274 is about 377.7925431433.

It can be divided in two parts, 5392 and 1274, that added together give a palindrome (6666).

The spelling of 53921274 in words is "fifty-three million, nine hundred twenty-one thousand, two hundred seventy-four".