70513725 has 12 divisors (see below), whose sum is σ = 116582816. Its totient is φ = 37607280.

The previous prime is 70513669. The next prime is 70513759. The reversal of 70513725 is 52731507.

It is not a de Polignac number, because 70513725 - 2⁶ = 70513661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70513692 and 70513701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470017 + ... + 470166.

Almost surely, 2^70513725 is an apocalyptic number.

70513725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70513725 is a deficient number, since it is larger than the sum of its proper divisors (46069091).

70513725 is a wasteful number, since it uses less digits than its factorization.

70513725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940196 (or 940191 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 70513725 is about 8397.2450839546. The cubic root of 70513725 is about 413.1342675812.

The spelling of 70513725 in words is "seventy million, five hundred thirteen thousand, seven hundred twenty-five".