25093530 has 256 divisors, whose sum is σ = 89579520. Its totient is φ = 4838400.

The previous prime is 25093507. The next prime is 25093559. The reversal of 25093530 is 3539052.

25093530 = T₈₀₅ + T₈₀₆ + ... + T₈₇₅.

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

It is a junction number, because it is equal to n+sod(n) for n = 25093494 and 25093503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 353395 + ... + 353465.

It is an arithmetic number, because the mean of its divisors is an integer number (349920).

Almost surely, 2^25093530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25093530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44789760).

25093530 is an abundant number, since it is smaller than the sum of its proper divisors (64485990).

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

25093530 is a wasteful number, since it uses less digits than its factorization.

25093530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 25093530 is about 5009.3442684647. The cubic root of 25093530 is about 292.7659645335.

The spelling of 25093530 in words is "twenty-five million, ninety-three thousand, five hundred thirty".