55798761 has 4 divisors (see below), whose sum is σ = 74398352. Its totient is φ = 37199172.

The previous prime is 55798741. The next prime is 55798781. The reversal of 55798761 is 16789755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55798741) and next prime (55798781).

It is not a de Polignac number, because 55798761 - 2¹⁸ = 55536617 is a prime.

It is a super-2 number, since 2×55798761² = 6227003458270242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55798761.

It is not an unprimeable number, because it can be changed into a prime (55798741) 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, 9299791 + ... + 9299796.

It is an arithmetic number, because the mean of its divisors is an integer number (18599588).

Almost surely, 2^55798761 is an apocalyptic number.

It is an amenable number.

55798761 is a deficient number, since it is larger than the sum of its proper divisors (18599591).

55798761 is a wasteful number, since it uses less digits than its factorization.

55798761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18599590.

The product of its digits is 529200, while the sum is 48.

The square root of 55798761 is about 7469.8568259372. The cubic root of 55798761 is about 382.1274051241.

The spelling of 55798761 in words is "fifty-five million, seven hundred ninety-eight thousand, seven hundred sixty-one".