2572245736 has 8 divisors (see below), whose sum is σ = 4822960770. Its totient is φ = 1286122864.

The previous prime is 2572245727. The next prime is 2572245737. The reversal of 2572245736 is 6375422752.

It can be written as a sum of positive squares in only one way, i.e., 1512743236 + 1059502500 = 38894^2 + 32550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2572245692 and 2572245701.

It is not an unprimeable number, because it can be changed into a prime (2572245737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160765351 + ... + 160765366.

Almost surely, 2^2572245736 is an apocalyptic number.

It is an amenable number.

2572245736 is a deficient number, since it is larger than the sum of its proper divisors (2250715034).

2572245736 is a wasteful number, since it uses less digits than its factorization.

2572245736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321530723 (or 321530719 counting only the distinct ones).

The product of its digits is 705600, while the sum is 43.

The square root of 2572245736 is about 50717.3119950180. The cubic root of 2572245736 is about 1370.1585296153.

The spelling of 2572245736 in words is "two billion, five hundred seventy-two million, two hundred forty-five thousand, seven hundred thirty-six".