25134767425 has 24 divisors (see below), whose sum is σ = 33278566464. Its totient is φ = 18786250560.

The previous prime is 25134767423. The next prime is 25134767447. The reversal of 25134767425 is 52476743152.

It is not a de Polignac number, because 25134767425 - 2¹ = 25134767423 is a prime.

It is a super-2 number, since 2×25134767425² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25134767423) 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, 483562 + ... + 533011.

It is an arithmetic number, because the mean of its divisors is an integer number (1386606936).

Almost surely, 2^25134767425 is an apocalyptic number.

25134767425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25134767425 is a deficient number, since it is larger than the sum of its proper divisors (8143799039).

25134767425 is a wasteful number, since it uses less digits than its factorization.

25134767425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016649 (or 1016644 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 46.

The spelling of 25134767425 in words is "twenty-five billion, one hundred thirty-four million, seven hundred sixty-seven thousand, four hundred twenty-five".