51860469 has 16 divisors (see below), whose sum is σ = 73382400. Its totient is φ = 32507376.

The previous prime is 51860461. The next prime is 51860477. The reversal of 51860469 is 96406815.

It is an interprime number because it is at equal distance from previous prime (51860461) and next prime (51860477).

It is not a de Polignac number, because 51860469 - 2³ = 51860461 is a prime.

It is a super-2 number, since 2×51860469² = 5379016489799922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51860461) 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, 2299 + ... + 10440.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 2^51860469 is an apocalyptic number.

51860469 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

51860469 is a deficient number, since it is larger than the sum of its proper divisors (21521931).

51860469 is a wasteful number, since it uses less digits than its factorization.

51860469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12824.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 51860469 is about 7201.4213180455. The cubic root of 51860469 is about 372.9169698294.

The spelling of 51860469 in words is "fifty-one million, eight hundred sixty thousand, four hundred sixty-nine".