25240051 has 8 divisors (see below), whose sum is σ = 26170704. Its totient is φ = 24324480.

The previous prime is 25240049. The next prime is 25240057. The reversal of 25240051 is 15004252.

25240051 = T₇₃₈ + T₇₃₉ + ... + T₈₂₀.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25240051 - 2¹ = 25240049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25240057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306 + ... + 7111.

It is an arithmetic number, because the mean of its divisors is an integer number (3271338).

Almost surely, 2^25240051 is an apocalyptic number.

25240051 is a deficient number, since it is larger than the sum of its proper divisors (930653).

25240051 is an equidigital number, since it uses as much as digits as its factorization.

25240051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7541.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 25240051 is about 5023.9477505245. The cubic root of 25240051 is about 293.3346787415.

The spelling of 25240051 in words is "twenty-five million, two hundred forty thousand, fifty-one".