25070049 has 9 divisors (see below), whose sum is σ = 36234003. Its totient is φ = 16703352.

The previous prime is 25070039. The next prime is 25070057. The reversal of 25070049 is 94007052.

The square root of 25070049 is 5007.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13373649 + 11696400 = 3657^2 + 3420^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 25070049 - 2⁷ = 25069921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25070009) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14187 + ... + 15855.

Almost surely, 2^25070049 is an apocalyptic number.

25070049 is the 5007-th square number.

25070049 is the 2504-th centered octagonal number.

It is an amenable number.

25070049 is a deficient number, since it is larger than the sum of its proper divisors (11163954).

25070049 is an frugal number, since it uses more digits than its factorization.

25070049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The cubic root of 25070049 is about 292.6746185045.

The spelling of 25070049 in words is "twenty-five million, seventy thousand, forty-nine".