2990525811 has 144 divisors (see below), whose sum is σ = 5446484064. Its totient is φ = 1449197568.

The previous prime is 2990525809. The next prime is 2990525819. The reversal of 2990525811 is 1185250992.

It is not a de Polignac number, because 2990525811 - 2¹ = 2990525809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2990525819) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 30830115 + ... + 30830211.

It is an arithmetic number, because the mean of its divisors is an integer number (37822806).

Almost surely, 2^2990525811 is an apocalyptic number.

2990525811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2990525811 is a deficient number, since it is larger than the sum of its proper divisors (2455958253).

2990525811 is a wasteful number, since it uses less digits than its factorization.

2990525811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 2990525811 is about 54685.7002423851. The cubic root of 2990525811 is about 1440.7297309317.

The spelling of 2990525811 in words is "two billion, nine hundred ninety million, five hundred twenty-five thousand, eight hundred eleven".