25121055 has 8 divisors (see below), whose sum is σ = 40193712. Its totient is φ = 13397888.

The previous prime is 25121011. The next prime is 25121093. The reversal of 25121055 is 55012152.

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

It is a cyclic number.

It is not a de Polignac number, because 25121055 - 2²² = 20926751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837354 + ... + 837383.

It is an arithmetic number, because the mean of its divisors is an integer number (5024214).

Almost surely, 2^25121055 is an apocalyptic number.

25121055 is a deficient number, since it is larger than the sum of its proper divisors (15072657).

25121055 is a wasteful number, since it uses less digits than its factorization.

25121055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674745.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 25121055 is about 5012.0908810595. The cubic root of 25121055 is about 292.8729700520.

The spelling of 25121055 in words is "twenty-five million, one hundred twenty-one thousand, fifty-five".