25330563534 has 32 divisors (see below), whose sum is σ = 50960647584. Its totient is φ = 8393748480.

The previous prime is 25330563521. The next prime is 25330563547. The reversal of 25330563534 is 43536503352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25330563521) and next prime (25330563547).

It is a junction number, because it is equal to n+sod(n) for n = 25330563492 and 25330563501.

It is a congruent number.

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, 682414 + ... + 718574.

It is an arithmetic number, because the mean of its divisors is an integer number (1592520237).

Almost surely, 2^25330563534 is an apocalyptic number.

25330563534 is an abundant number, since it is smaller than the sum of its proper divisors (25630084050).

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

25330563534 is a wasteful number, since it uses less digits than its factorization.

25330563534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36852.

The product of its (nonzero) digits is 486000, while the sum is 39.

The spelling of 25330563534 in words is "twenty-five billion, three hundred thirty million, five hundred sixty-three thousand, five hundred thirty-four".