70725025 has 24 divisors (see below), whose sum is σ = 100658240. Its totient is φ = 48288960.

The previous prime is 70724963. The next prime is 70725029. The reversal of 70725025 is 52052707.

It is not a de Polignac number, because 70725025 - 2²¹ = 68627873 is a prime.

It is a super-2 number, since 2×70725025² = 10004058322501250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70724984 and 70725002.

It is not an unprimeable number, because it can be changed into a prime (70725029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47746 + ... + 49204.

Almost surely, 2^70725025 is an apocalyptic number.

It is an amenable number.

70725025 is a deficient number, since it is larger than the sum of its proper divisors (29933215).

70725025 is a wasteful number, since it uses less digits than its factorization.

70725025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 70725025 is about 8409.8171799392. The cubic root of 70725025 is about 413.5465193325.

The spelling of 70725025 in words is "seventy million, seven hundred twenty-five thousand, twenty-five".