25290123030 has 48 divisors (see below), whose sum is σ = 66368871504. Its totient is φ = 6681001920.

The previous prime is 25290123017. The next prime is 25290123031. The reversal of 25290123030 is 3032109252.

It is a super-3 number, since 3×25290123030³ (a number of 32 digits) contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25290122985 and 25290123003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25290123031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1303461 + ... + 1322720.

It is an arithmetic number, because the mean of its divisors is an integer number (1382684823).

Almost surely, 2^25290123030 is an apocalyptic number.

25290123030 is an abundant number, since it is smaller than the sum of its proper divisors (41078748474).

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

25290123030 is a wasteful number, since it uses less digits than its factorization.

25290123030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626301 (or 2626298 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The spelling of 25290123030 in words is "twenty-five billion, two hundred ninety million, one hundred twenty-three thousand, thirty".