70525751 has 6 divisors (see below), whose sum is σ = 73725960. Its totient is φ = 67458908.

The previous prime is 70525747. The next prime is 70525753. The reversal of 70525751 is 15752507.

It is not a de Polignac number, because 70525751 - 2² = 70525747 is a prime.

It is a super-2 number, since 2×70525751² = 9947763108228002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70525753) 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, 66131 + ... + 67188.

It is an arithmetic number, because the mean of its divisors is an integer number (12287660).

Almost surely, 2^70525751 is an apocalyptic number.

70525751 is a deficient number, since it is larger than the sum of its proper divisors (3200209).

70525751 is a wasteful number, since it uses less digits than its factorization.

70525751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133365 (or 133342 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 70525751 is about 8397.9611216056. The cubic root of 70525751 is about 413.1577527031.

The spelling of 70525751 in words is "seventy million, five hundred twenty-five thousand, seven hundred fifty-one".