70577725 has 6 divisors (see below), whose sum is σ = 87516410. Its totient is φ = 56462160.

The previous prime is 70577713. The next prime is 70577729. The reversal of 70577725 is 52777507.

It can be written as a sum of positive squares in 3 ways, for example, as 470596 + 70107129 = 686^2 + 8373^2 .

It is a de Polignac number, because none of the positive numbers 2^k-70577725 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70577729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1411530 + ... + 1411579.

Almost surely, 2^70577725 is an apocalyptic number.

It is an amenable number.

70577725 is a deficient number, since it is larger than the sum of its proper divisors (16938685).

70577725 is a wasteful number, since it uses less digits than its factorization.

70577725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823119 (or 2823114 counting only the distinct ones).

The product of its (nonzero) digits is 120050, while the sum is 40.

The square root of 70577725 is about 8401.0549932732. The cubic root of 70577725 is about 413.2592200770.

The spelling of 70577725 in words is "seventy million, five hundred seventy-seven thousand, seven hundred twenty-five".