2540157477 has 24 divisors (see below), whose sum is σ = 4009139232. Its totient is φ = 1421064480.

The previous prime is 2540157463. The next prime is 2540157511. The reversal of 2540157477 is 7747510452.

It is not a de Polignac number, because 2540157477 - 2⁴ = 2540157461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540157377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264423 + ... + 273860.

It is an arithmetic number, because the mean of its divisors is an integer number (167047468).

Almost surely, 2^2540157477 is an apocalyptic number.

It is an amenable number.

2540157477 is a deficient number, since it is larger than the sum of its proper divisors (1468981755).

2540157477 is a wasteful number, since it uses less digits than its factorization.

2540157477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538321 (or 538310 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 42.

The square root of 2540157477 is about 50399.9749702319. The cubic root of 2540157477 is about 1364.4371864285.

The spelling of 2540157477 in words is "two billion, five hundred forty million, one hundred fifty-seven thousand, four hundred seventy-seven".