70404525 has 48 divisors (see below), whose sum is σ = 132878400. Its totient is φ = 36521280.

The previous prime is 70404493. The next prime is 70404569. The reversal of 70404525 is 52540407.

It is not a de Polignac number, because 70404525 - 2⁵ = 70404493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23566 + ... + 26384.

It is an arithmetic number, because the mean of its divisors is an integer number (2768300).

Almost surely, 2^70404525 is an apocalyptic number.

70404525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70404525 is a deficient number, since it is larger than the sum of its proper divisors (62473875).

70404525 is a wasteful number, since it uses less digits than its factorization.

70404525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875 (or 2864 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 70404525 is about 8390.7404321669. The cubic root of 70404525 is about 412.9208927118.

The spelling of 70404525 in words is "seventy million, four hundred four thousand, five hundred twenty-five".