51452590 has 32 divisors (see below), whose sum is σ = 107305920. Its totient is φ = 17397504.

The previous prime is 51452579. The next prime is 51452593. The reversal of 51452590 is 9525415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51452593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76 + ... + 10144.

It is an arithmetic number, because the mean of its divisors is an integer number (3353310).

Almost surely, 2^51452590 is an apocalyptic number.

51452590 is an abundant number, since it is smaller than the sum of its proper divisors (55853330).

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

51452590 is a wasteful number, since it uses less digits than its factorization.

51452590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 51452590 is about 7173.0460754132. The cubic root of 51452590 is about 371.9367401198.

The spelling of 51452590 in words is "fifty-one million, four hundred fifty-two thousand, five hundred ninety".