25533250530 has 32 divisors (see below), whose sum is σ = 61364145024. Its totient is φ = 6799495296.

The previous prime is 25533250511. The next prime is 25533250549. The reversal of 25533250530 is 3505233552.

It is an interprime number because it is at equal distance from previous prime (25533250511) and next prime (25533250549).

It is a junction number, because it is equal to n+sod(n) for n = 25533250491 and 25533250500.

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, 563547 + ... + 607166.

It is an arithmetic number, because the mean of its divisors is an integer number (1917629532).

Almost surely, 2^25533250530 is an apocalyptic number.

25533250530 is an abundant number, since it is smaller than the sum of its proper divisors (35830894494).

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

25533250530 is a wasteful number, since it uses less digits than its factorization.

25533250530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171450.

The product of its (nonzero) digits is 67500, while the sum is 33.

The spelling of 25533250530 in words is "twenty-five billion, five hundred thirty-three million, two hundred fifty thousand, five hundred thirty".