25470051 has 16 divisors (see below), whose sum is σ = 36426240. Its totient is φ = 15780960.

The previous prime is 25470031. The next prime is 25470059. The reversal of 25470051 is 15007452.

Added to its reverse (15007452) it gives a triangular number (40477503 = T₈₉₉₇).

It is not a de Polignac number, because 25470051 - 2⁵ = 25470019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25470059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195 + ... + 7236.

It is an arithmetic number, because the mean of its divisors is an integer number (2276640).

Almost surely, 2^25470051 is an apocalyptic number.

25470051 is a deficient number, since it is larger than the sum of its proper divisors (10956189).

25470051 is a wasteful number, since it uses less digits than its factorization.

25470051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8506.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 25470051 is about 5046.7862051012. The cubic root of 25470051 is about 294.2229901577. Note that the first 3 decimals are identical.

Adding to 25470051 its reverse (15007452), we get a triangular number (40477503 = T₈₉₉₇).

The spelling of 25470051 in words is "twenty-five million, four hundred seventy thousand, fifty-one".