51098858 has 8 divisors (see below), whose sum is σ = 76746852. Its totient is φ = 25516576.

The previous prime is 51098857. The next prime is 51098863. The reversal of 51098858 is 85889015.

It can be written as a sum of positive squares in 2 ways, for example, as 44662489 + 6436369 = 6683^2 + 2537^2 .

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

It is a super-2 number, since 2×51098858² = 5222186577808328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51098851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14435 + ... + 17622.

Almost surely, 2^51098858 is an apocalyptic number.

51098858 is a deficient number, since it is larger than the sum of its proper divisors (25647994).

51098858 is a wasteful number, since it uses less digits than its factorization.

51098858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32856.

The product of its (nonzero) digits is 115200, while the sum is 44.

The square root of 51098858 is about 7148.3465220987. The cubic root of 51098858 is about 371.0824353111.

The spelling of 51098858 in words is "fifty-one million, ninety-eight thousand, eight hundred fifty-eight".