51432498 has 24 divisors (see below), whose sum is σ = 120009708. Its totient is φ = 15825312.

The previous prime is 51432467. The next prime is 51432499. The reversal of 51432498 is 89423415.

It can be written as a sum of positive squares in 2 ways, for example, as 35964009 + 15468489 = 5997^2 + 3933^2 .

It is not an unprimeable number, because it can be changed into a prime (51432499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109665 + ... + 110132.

Almost surely, 2^51432498 is an apocalyptic number.

51432498 is an abundant number, since it is smaller than the sum of its proper divisors (68577210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51432498 is a wasteful number, since it uses less digits than its factorization.

51432498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219818 (or 219815 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 51432498 is about 7171.6454178940. The cubic root of 51432498 is about 371.8883206207. Note that the first 3 decimals are identical.

The spelling of 51432498 in words is "fifty-one million, four hundred thirty-two thousand, four hundred ninety-eight".