25038754478 has 8 divisors (see below), whose sum is σ = 38573216472. Its totient is φ = 12181015656.

The previous prime is 25038754459. The next prime is 25038754493. The reversal of 25038754478 is 87445783052.

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

It is a super-3 number, since 3×25038754478³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169180700 + ... + 169180847.

It is an arithmetic number, because the mean of its divisors is an integer number (4821652059).

Almost surely, 2^25038754478 is an apocalyptic number.

25038754478 is a deficient number, since it is larger than the sum of its proper divisors (13534461994).

25038754478 is a wasteful number, since it uses less digits than its factorization.

25038754478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338361586.

The product of its (nonzero) digits is 7526400, while the sum is 53.

The spelling of 25038754478 in words is "twenty-five billion, thirty-eight million, seven hundred fifty-four thousand, four hundred seventy-eight".