52457472 has 78 divisors (see below), whose sum is σ = 151631792. Its totient is φ = 17473536.

The previous prime is 52457413. The next prime is 52457473. The reversal of 52457472 is 27475425.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52457473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36153 + ... + 37575.

Almost surely, 2^52457472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52457472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75815896).

52457472 is an abundant number, since it is smaller than the sum of its proper divisors (99174320).

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

52457472 is a wasteful number, since it uses less digits than its factorization.

52457472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1428 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 52457472 is about 7242.7530677222. The cubic root of 52457472 is about 374.3424851384.

The spelling of 52457472 in words is "fifty-two million, four hundred fifty-seven thousand, four hundred seventy-two".