25150533869 has 2 divisors, whose sum is σ = 25150533870. Its totient is φ = 25150533868.

The previous prime is 25150533851. The next prime is 25150533943. The reversal of 25150533869 is 96833505152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14697925225 + 10452608644 = 121235^2 + 102238^2 .

It is a cyclic number.

It is not a de Polignac number, because 25150533869 - 2¹⁶ = 25150468333 is a prime.

It is a super-2 number, since 2×25150533869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25150533829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12575266934 + 12575266935.

It is an arithmetic number, because the mean of its divisors is an integer number (12575266935).

Almost surely, 2^25150533869 is an apocalyptic number.

It is an amenable number.

25150533869 is a deficient number, since it is larger than the sum of its proper divisors (1).

25150533869 is an equidigital number, since it uses as much as digits as its factorization.

25150533869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 25150533869 in words is "twenty-five billion, one hundred fifty million, five hundred thirty-three thousand, eight hundred sixty-nine".