2991525 has 12 divisors (see below), whose sum is σ = 4946112. Its totient is φ = 1595440.

The previous prime is 2991523. The next prime is 2991551. The reversal of 2991525 is 5251992.

It is not a de Polignac number, because 2991525 - 2¹ = 2991523 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19869 + ... + 20018.

It is an arithmetic number, because the mean of its divisors is an integer number (412176).

2^2991525 is an apocalyptic number.

2991525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2991525 is a deficient number, since it is larger than the sum of its proper divisors (1954587).

2991525 is a wasteful number, since it uses less digits than its factorization.

2991525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39900 (or 39895 counting only the distinct ones).

The product of its digits is 8100, while the sum is 33.

The square root of 2991525 is about 1729.6025555023. The cubic root of 2991525 is about 144.0890171056.

The spelling of 2991525 in words is "two million, nine hundred ninety-one thousand, five hundred twenty-five".