2575401540 has 48 divisors (see below), whose sum is σ = 7524655488. Its totient is φ = 656913664.

The previous prime is 2575401527. The next prime is 2575401551. The reversal of 2575401540 is 451045752.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 931737 + ... + 934496.

It is an arithmetic number, because the mean of its divisors is an integer number (156763656).

Almost surely, 2^2575401540 is an apocalyptic number.

2575401540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2575401540 is an abundant number, since it is smaller than the sum of its proper divisors (4949253948).

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

2575401540 is a wasteful number, since it uses less digits than its factorization.

2575401540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866268 (or 1866266 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 2575401540 is about 50748.4141624150. The cubic root of 2575401540 is about 1370.7186348193.

The spelling of 2575401540 in words is "two billion, five hundred seventy-five million, four hundred one thousand, five hundred forty".