2130531550 has 24 divisors (see below), whose sum is σ = 4528902096. Its totient is φ = 730467840.

The previous prime is 2130531527. The next prime is 2130531563. The reversal of 2130531550 is 551350312.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3043267 + ... + 3043966.

It is an arithmetic number, because the mean of its divisors is an integer number (188704254).

Almost surely, 2^2130531550 is an apocalyptic number.

2130531550 is an abundant number, since it is smaller than the sum of its proper divisors (2398370546).

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

2130531550 is a wasteful number, since it uses less digits than its factorization.

2130531550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6087252 (or 6087247 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 2130531550 is about 46157.6813759097. The cubic root of 2130531550 is about 1286.7553717320.

Adding to 2130531550 its reverse (551350312), we get a palindrome (2681881862).

It can be divided in two parts, 213053 and 1550, that multiplied together give a triangular number (330232150 = T₂₅₆₉₉).

The spelling of 2130531550 in words is "two billion, one hundred thirty million, five hundred thirty-one thousand, five hundred fifty".