70471525 has 12 divisors (see below), whose sum is σ = 90204544. Its totient is φ = 54558000.

The previous prime is 70471523. The next prime is 70471553. The reversal of 70471525 is 52517407.

It is not a de Polignac number, because 70471525 - 2¹ = 70471523 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70471523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44691 + ... + 46240.

Almost surely, 2^70471525 is an apocalyptic number.

It is an amenable number.

70471525 is a deficient number, since it is larger than the sum of its proper divisors (19733019).

70471525 is a wasteful number, since it uses less digits than its factorization.

70471525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90972 (or 90967 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 70471525 is about 8394.7319790450. The cubic root of 70471525 is about 413.0518356613.

The spelling of 70471525 in words is "seventy million, four hundred seventy-one thousand, five hundred twenty-five".