55426501 has 8 divisors (see below), whose sum is σ = 60127704. Its totient is φ = 50787840.

The previous prime is 55426471. The next prime is 55426507. The reversal of 55426501 is 10562455.

It can be written as a sum of positive squares in 4 ways, for example, as 3572100 + 51854401 = 1890^2 + 7201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55426501 - 2¹⁹ = 54902213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55426501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55426507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13780 + ... + 17341.

It is an arithmetic number, because the mean of its divisors is an integer number (7515963).

Almost surely, 2^55426501 is an apocalyptic number.

It is an amenable number.

55426501 is a deficient number, since it is larger than the sum of its proper divisors (4701203).

55426501 is a wasteful number, since it uses less digits than its factorization.

55426501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31271.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 55426501 is about 7444.8976487256. The cubic root of 55426501 is about 381.2757239294.

Adding to 55426501 its reverse (10562455), we get a palindrome (65988956).

The spelling of 55426501 in words is "fifty-five million, four hundred twenty-six thousand, five hundred one".