55140413 has 16 divisors (see below), whose sum is σ = 60364800. Its totient is φ = 50174640.

The previous prime is 55140403. The next prime is 55140431. The reversal of 55140413 is 31404155.

It is a cyclic number.

It is not a de Polignac number, because 55140413 - 2¹⁴ = 55124029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55140403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105170 + ... + 105692.

It is an arithmetic number, because the mean of its divisors is an integer number (3772800).

Almost surely, 2^55140413 is an apocalyptic number.

It is an amenable number.

55140413 is a deficient number, since it is larger than the sum of its proper divisors (5224387).

55140413 is a wasteful number, since it uses less digits than its factorization.

55140413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 55140413 is about 7425.6590953262. The cubic root of 55140413 is about 380.6185977085.

Adding to 55140413 its reverse (31404155), we get a palindrome (86544568).

The spelling of 55140413 in words is "fifty-five million, one hundred forty thousand, four hundred thirteen".