25714996590 has 64 divisors (see below), whose sum is σ = 64736796672. Its totient is φ = 6524812800.

The previous prime is 25714996577. The next prime is 25714996661. The reversal of 25714996590 is 9569941752.

It is a super-2 number, since 2×25714996590² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25714996590.

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, 34230 + ... + 229350.

It is an arithmetic number, because the mean of its divisors is an integer number (1011512448).

Almost surely, 2^25714996590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25714996590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32368398336).

25714996590 is an abundant number, since it is smaller than the sum of its proper divisors (39021800082).

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

25714996590 is a wasteful number, since it uses less digits than its factorization.

25714996590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195345.

The product of its (nonzero) digits is 6123600, while the sum is 57.

The spelling of 25714996590 in words is "twenty-five billion, seven hundred fourteen million, nine hundred ninety-six thousand, five hundred ninety".