2525831664 has 40 divisors (see below), whose sum is σ = 6808766592. Its totient is φ = 805337280.

The previous prime is 2525831663. The next prime is 2525831683. The reversal of 2525831664 is 4661385252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525831663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142842 + ... + 1145049.

Almost surely, 2^2525831664 is an apocalyptic number.

2525831664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2525831664 is an abundant number, since it is smaller than the sum of its proper divisors (4282934928).

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

2525831664 is a wasteful number, since it uses less digits than its factorization.

2525831664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287925 (or 2287919 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 2525831664 is about 50257.6527903960. The cubic root of 2525831664 is about 1361.8673282289.

The spelling of 2525831664 in words is "two billion, five hundred twenty-five million, eight hundred thirty-one thousand, six hundred sixty-four".