25395552 has 384 divisors, whose sum is σ = 101606400. Its totient is φ = 5971968.

The previous prime is 25395509. The next prime is 25395641. The reversal of 25395552 is 25559352.

It is a super-2 number, since 2×25395552² = 1289868122769408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (67500) is a multiple of the sum of its prime factors (75).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1336599 + ... + 1336617.

It is an arithmetic number, because the mean of its divisors is an integer number (264600).

Almost surely, 2^25395552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25395552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50803200).

25395552 is an abundant number, since it is smaller than the sum of its proper divisors (76210848).

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

25395552 is a wasteful number, since it uses less digits than its factorization.

25395552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 61 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The square root of 25395552 is about 5039.3999642815. The cubic root of 25395552 is about 293.9358460603.

The spelling of 25395552 in words is "twenty-five million, three hundred ninety-five thousand, five hundred fifty-two".