55637401 has 2 divisors, whose sum is σ = 55637402. Its totient is φ = 55637400.

The previous prime is 55637383. The next prime is 55637419. The reversal of 55637401 is 10473655.

It is a balanced prime because it is at equal distance from previous prime (55637383) and next prime (55637419).

It can be written as a sum of positive squares in only one way, i.e., 36723600 + 18913801 = 6060^2 + 4349^2 .

It is a cyclic number.

It is not a de Polignac number, because 55637401 - 2⁷ = 55637273 is a prime.

It is not a weakly prime, because it can be changed into another prime (55637431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27818700 + 27818701.

It is an arithmetic number, because the mean of its divisors is an integer number (27818701).

Almost surely, 2^55637401 is an apocalyptic number.

It is an amenable number.

55637401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55637401 is an equidigital number, since it uses as much as digits as its factorization.

55637401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 55637401 is about 7459.0482636862. The cubic root of 55637401 is about 381.7587015347.

The spelling of 55637401 in words is "fifty-five million, six hundred thirty-seven thousand, four hundred one".