2545065501 has 32 divisors (see below), whose sum is σ = 3757086720. Its totient is φ = 1519564800.

The previous prime is 2545065493. The next prime is 2545065517. The reversal of 2545065501 is 1055605452.

It is not a de Polignac number, because 2545065501 - 2³ = 2545065493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545065571) 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, 1670326 + ... + 1671848.

It is an arithmetic number, because the mean of its divisors is an integer number (117408960).

Almost surely, 2^2545065501 is an apocalyptic number.

It is an amenable number.

2545065501 is a deficient number, since it is larger than the sum of its proper divisors (1212021219).

2545065501 is a wasteful number, since it uses less digits than its factorization.

2545065501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 2545065501 is about 50448.6422116592. The cubic root of 2545065501 is about 1365.3153973382.

It can be divided in two parts, 25450 and 65501, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 2545065501 in words is "two billion, five hundred forty-five million, sixty-five thousand, five hundred one".