51425355 has 16 divisors (see below), whose sum is σ = 85858560. Its totient is φ = 26234208.

The previous prime is 51425351. The next prime is 51425383. The reversal of 51425355 is 55352415.

It is a happy number.

It is not a de Polignac number, because 51425355 - 2² = 51425351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51425351) 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, 74185 + ... + 74874.

It is an arithmetic number, because the mean of its divisors is an integer number (5366160).

Almost surely, 2^51425355 is an apocalyptic number.

51425355 is a deficient number, since it is larger than the sum of its proper divisors (34433205).

51425355 is a wasteful number, since it uses less digits than its factorization.

51425355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149090.

The product of its digits is 15000, while the sum is 30.

The square root of 51425355 is about 7171.1473977321. The cubic root of 51425355 is about 371.8711037419.

The spelling of 51425355 in words is "fifty-one million, four hundred twenty-five thousand, three hundred fifty-five".