2545401651 has 32 divisors (see below), whose sum is σ = 3819820032. Its totient is φ = 1495950720.

The previous prime is 2545401629. The next prime is 2545401667. The reversal of 2545401651 is 1561045452.

It is not a de Polignac number, because 2545401651 - 2¹¹ = 2545399603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2545401451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691546 + ... + 695216.

It is an arithmetic number, because the mean of its divisors is an integer number (119369376).

Almost surely, 2^2545401651 is an apocalyptic number.

2545401651 is a deficient number, since it is larger than the sum of its proper divisors (1274418381).

2545401651 is a wasteful number, since it uses less digits than its factorization.

2545401651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 2545401651 is about 50451.9737076757. The cubic root of 2545401651 is about 1365.3755045753.

The spelling of 2545401651 in words is "two billion, five hundred forty-five million, four hundred one thousand, six hundred fifty-one".