275400025 has 12 divisors (see below), whose sum is σ = 348763392. Its totient is φ = 215631440.

The previous prime is 275400011. The next prime is 275400043. The reversal of 275400025 is 520004572.

It is not a de Polignac number, because 275400025 - 2¹⁷ = 275268953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116017 + ... + 118366.

It is an arithmetic number, because the mean of its divisors is an integer number (29063616).

Almost surely, 2^275400025 is an apocalyptic number.

275400025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275400025 is a deficient number, since it is larger than the sum of its proper divisors (73363367).

275400025 is a wasteful number, since it uses less digits than its factorization.

275400025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234440 (or 234435 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 275400025 is about 16595.1807763579. The cubic root of 275400025 is about 650.6108852619.

Adding to 275400025 its reverse (520004572), we get a palindrome (795404597).

The spelling of 275400025 in words is "two hundred seventy-five million, four hundred thousand, twenty-five".