55761401 has 2 divisors, whose sum is σ = 55761402. Its totient is φ = 55761400.

The previous prime is 55761383. The next prime is 55761421. The reversal of 55761401 is 10416755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50694400 + 5067001 = 7120^2 + 2251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55761401 is a prime.

It is a super-3 number, since 3×55761401³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55761421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27880700 + 27880701.

It is an arithmetic number, because the mean of its divisors is an integer number (27880701).

Almost surely, 2^55761401 is an apocalyptic number.

It is an amenable number.

55761401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55761401 is an equidigital number, since it uses as much as digits as its factorization.

55761401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 55761401 is about 7467.3556899347. The cubic root of 55761401 is about 382.0421017529.

The spelling of 55761401 in words is "fifty-five million, seven hundred sixty-one thousand, four hundred one".