70240025 has 12 divisors (see below), whose sum is σ = 87485100. Its totient is φ = 55942080.

The previous prime is 70240021. The next prime is 70240057. The reversal of 70240025 is 52004207.

It can be written as a sum of positive squares in 6 ways, for example, as 10316944 + 59923081 = 3212^2 + 7741^2 .

It is not a de Polignac number, because 70240025 - 2² = 70240021 is a prime.

It is a super-2 number, since 2×70240025² = 9867322224001250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70239979 and 70240006.

It is not an unprimeable number, because it can be changed into a prime (70240021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410 + ... + 11859.

It is an arithmetic number, because the mean of its divisors is an integer number (7290425).

Almost surely, 2^70240025 is an apocalyptic number.

It is an amenable number.

70240025 is a deficient number, since it is larger than the sum of its proper divisors (17245075).

70240025 is a wasteful number, since it uses less digits than its factorization.

70240025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12508 (or 12503 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 70240025 is about 8380.9322273838. The cubic root of 70240025 is about 412.5990456989.

The spelling of 70240025 in words is "seventy million, two hundred forty thousand, twenty-five".