25513070 has 32 divisors (see below), whose sum is σ = 51329376. Its totient is φ = 9049600.

The previous prime is 25513043. The next prime is 25513097. The reversal of 25513070 is 7031552.

It is an interprime number because it is at equal distance from previous prime (25513043) and next prime (25513097).

It is a super-4 number, since 4×25513070⁴ (a number of 31 digits) contains 4444 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1682 + ... + 7338.

It is an arithmetic number, because the mean of its divisors is an integer number (1604043).

Almost surely, 2^25513070 is an apocalyptic number.

25513070 is an abundant number, since it is smaller than the sum of its proper divisors (25816306).

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

25513070 is a wasteful number, since it uses less digits than its factorization.

25513070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5716.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 25513070 is about 5051.0464262368. The cubic root of 25513070 is about 294.3885448515.

The spelling of 25513070 in words is "twenty-five million, five hundred thirteen thousand, seventy".