50072640 has 112 divisors (see below), whose sum is σ = 162811968. Its totient is φ = 13031424.

The previous prime is 50072623. The next prime is 50072653. The reversal of 50072640 is 4627005.

It is a happy number.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 50072640.

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, 40674 + ... + 41886.

Almost surely, 2^50072640 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 50072640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81405984).

50072640 is an abundant number, since it is smaller than the sum of its proper divisors (112739328).

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

50072640 is a wasteful number, since it uses less digits than its factorization.

50072640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1266 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 50072640 is about 7076.2023713288. The cubic root of 50072640 is about 368.5814689033.

Adding to 50072640 its reverse (4627005), we get a palindrome (54699645).

The spelling of 50072640 in words is "fifty million, seventy-two thousand, six hundred forty".