70240725 has 36 divisors (see below), whose sum is σ = 126393696. Its totient is φ = 37287840.

The previous prime is 70240721. The next prime is 70240757. The reversal of 70240725 is 52704207.

It is not a de Polignac number, because 70240725 - 2² = 70240721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70240721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 58582 + ... + 59768.

It is an arithmetic number, because the mean of its divisors is an integer number (3510936).

Almost surely, 2^70240725 is an apocalyptic number.

70240725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70240725 is a deficient number, since it is larger than the sum of its proper divisors (56152971).

70240725 is a wasteful number, since it uses less digits than its factorization.

70240725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 70240725 is about 8380.9739887438. The cubic root of 70240725 is about 412.6004163247.

The spelling of 70240725 in words is "seventy million, two hundred forty thousand, seven hundred twenty-five".