70525560 has 128 divisors (see below), whose sum is σ = 244270080. Its totient is φ = 15955968.

The previous prime is 70525541. The next prime is 70525579. The reversal of 70525560 is 6552507.

It is an interprime number because it is at equal distance from previous prime (70525541) and next prime (70525579).

It is a super-2 number, since 2×70525560² = 9947709226627200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94549 + ... + 95291.

It is an arithmetic number, because the mean of its divisors is an integer number (1908360).

Almost surely, 2^70525560 is an apocalyptic number.

70525560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70525560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122135040).

70525560 is an abundant number, since it is smaller than the sum of its proper divisors (173744520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70525560 is a wasteful number, since it uses less digits than its factorization.

70525560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 70525560 is about 8397.9497497901. The cubic root of 70525560 is about 413.1573797272.

The spelling of 70525560 in words is "seventy million, five hundred twenty-five thousand, five hundred sixty".