50513490 has 64 divisors (see below), whose sum is σ = 136955520. Its totient is φ = 13245120.

The previous prime is 50513483. The next prime is 50513501. The reversal of 50513490 is 9431505.

It is a super-2 number, since 2×50513490² = 5103225343960200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14937 + ... + 18003.

It is an arithmetic number, because the mean of its divisors is an integer number (2139930).

Almost surely, 2^50513490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50513490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68477760).

50513490 is an abundant number, since it is smaller than the sum of its proper divisors (86442030).

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

50513490 is a wasteful number, since it uses less digits than its factorization.

50513490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144 (or 3138 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 50513490 is about 7107.2842914857. The cubic root of 50513490 is about 369.6599993250.

Adding to 50513490 its reverse (9431505), we get a palindrome (59944995).

The spelling of 50513490 in words is "fifty million, five hundred thirteen thousand, four hundred ninety".