52351040 has 56 divisors (see below), whose sum is σ = 142475712. Its totient is φ = 17948160.

The previous prime is 52351031. The next prime is 52351043. The reversal of 52351040 is 4015325.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (52351043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9446 + ... + 13925.

Almost surely, 2^52351040 is an apocalyptic number.

It is an amenable number.

52351040 is an abundant number, since it is smaller than the sum of its proper divisors (90124672).

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

52351040 is a wasteful number, since it uses less digits than its factorization.

52351040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23395 (or 23385 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52351040 is about 7235.4018547694. The cubic root of 52351040 is about 374.0891434396.

Adding to 52351040 its reverse (4015325), we get a palindrome (56366365).

The spelling of 52351040 in words is "fifty-two million, three hundred fifty-one thousand, forty".