2545157601 has 48 divisors (see below), whose sum is σ = 4456767744. Its totient is φ = 1366336512.

The previous prime is 2545157581. The next prime is 2545157623. The reversal of 2545157601 is 1067515452.

2545157601 is a `hidden beast` number, since 2 + 5 + 45 + 1 + 5 + 7 + 601 = 666.

It is not a de Polignac number, because 2545157601 - 2¹⁷ = 2545026529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2545157201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 691101 + ... + 694773.

It is an arithmetic number, because the mean of its divisors is an integer number (92849328).

Almost surely, 2^2545157601 is an apocalyptic number.

2545157601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2545157601 is a deficient number, since it is larger than the sum of its proper divisors (1911610143).

2545157601 is a wasteful number, since it uses less digits than its factorization.

2545157601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350 (or 4347 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 2545157601 is about 50449.5550129037. Note that the first 3 decimals coincide. The cubic root of 2545157601 is about 1365.3318663356.

The spelling of 2545157601 in words is "two billion, five hundred forty-five million, one hundred fifty-seven thousand, six hundred one".