52150640 has 40 divisors (see below), whose sum is σ = 121920768. Its totient is φ = 20744960.

The previous prime is 52150639. The next prime is 52150661. The reversal of 52150640 is 4605125.

It is a tau number, because it is divible by the number of its divisors (40).

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, 13574 + ... + 16986.

Almost surely, 2^52150640 is an apocalyptic number.

It is an amenable number.

52150640 is an abundant number, since it is smaller than the sum of its proper divisors (69770128).

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

52150640 is a wasteful number, since it uses less digits than its factorization.

52150640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 52150640 is about 7221.5400019663. The cubic root of 52150640 is about 373.6111947883.

Adding to 52150640 its reverse (4605125), we get a palindrome (56755765).

The spelling of 52150640 in words is "fifty-two million, one hundred fifty thousand, six hundred forty".