521949136150 has 48 divisors (see below), whose sum is σ = 1047106199664. Its totient is φ = 192424394880.

The previous prime is 521949136091. The next prime is 521949136153. The reversal of 521949136150 is 51631949125.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 521949136150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521949136153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190404 + ... + 1039303.

It is an arithmetic number, because the mean of its divisors is an integer number (21814712493).

Almost surely, 2^521949136150 is an apocalyptic number.

521949136150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

521949136150 is an abundant number, since it is smaller than the sum of its proper divisors (525157063514).

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

521949136150 is a wasteful number, since it uses less digits than its factorization.

521949136150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230385 (or 1230380 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 521949136150 in words is "five hundred twenty-one billion, nine hundred forty-nine million, one hundred thirty-six thousand, one hundred fifty".