2545207320 has 64 divisors (see below), whose sum is σ = 8037504000. Its totient is φ = 642999168.

The previous prime is 2545207297. The next prime is 2545207321. The reversal of 2545207320 is 237025452.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545207321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555880 + ... + 560439.

It is an arithmetic number, because the mean of its divisors is an integer number (125586000).

Almost surely, 2^2545207320 is an apocalyptic number.

2545207320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545207320 is an abundant number, since it is smaller than the sum of its proper divisors (5492296680).

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

2545207320 is a wasteful number, since it uses less digits than its factorization.

2545207320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116352 (or 1116348 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 2545207320 is about 50450.0477700468. The cubic root of 2545207320 is about 1365.3407567468.

The spelling of 2545207320 in words is "two billion, five hundred forty-five million, two hundred seven thousand, three hundred twenty".