55415351 has 2 divisors, whose sum is σ = 55415352. Its totient is φ = 55415350.

The previous prime is 55415333. The next prime is 55415377. The reversal of 55415351 is 15351455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55415351 - 2¹⁸ = 55153207 is a prime.

It is a super-2 number, since 2×55415351² = 6141722252906402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55415251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27707675 + 27707676.

It is an arithmetic number, because the mean of its divisors is an integer number (27707676).

Almost surely, 2^55415351 is an apocalyptic number.

55415351 is a deficient number, since it is larger than the sum of its proper divisors (1).

55415351 is an equidigital number, since it uses as much as digits as its factorization.

55415351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7500, while the sum is 29.

The square root of 55415351 is about 7444.1487760522. The cubic root of 55415351 is about 381.2501554779.

The spelling of 55415351 in words is "fifty-five million, four hundred fifteen thousand, three hundred fifty-one".