50251530 has 64 divisors (see below), whose sum is σ = 138498048. Its totient is φ = 11430720.

The previous prime is 50251517. The next prime is 50251547. The reversal of 50251530 is 3515205.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 50251497 and 50251506.

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, 56469 + ... + 57351.

It is an arithmetic number, because the mean of its divisors is an integer number (2164032).

Almost surely, 2^50251530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50251530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69249024).

50251530 is an abundant number, since it is smaller than the sum of its proper divisors (88246518).

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

50251530 is a wasteful number, since it uses less digits than its factorization.

50251530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 50251530 is about 7088.8313564367. The cubic root of 50251530 is about 369.0198798053.

Adding to 50251530 its reverse (3515205), we get a palindrome (53766735).

It can be divided in two parts, 5025 and 1530, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 50251530 in words is "fifty million, two hundred fifty-one thousand, five hundred thirty".