55140751 has 8 divisors (see below), whose sum is σ = 56710800. Its totient is φ = 53592000.

The previous prime is 55140739. The next prime is 55140763. The reversal of 55140751 is 15704155.

55140751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

55140751 is a nontrivial binomial coefficient, being equal to C(10502, 2).

It is an interprime number because it is at equal distance from previous prime (55140739) and next prime (55140763).

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 55140751 - 2¹⁷ = 55009679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55140731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 10501.

It is an arithmetic number, because the mean of its divisors is an integer number (7088850).

Almost surely, 2^55140751 is an apocalyptic number.

55140751 is the 10501-st triangular number and also the 5251-st hexagonal number.

55140751 is the 3501-st centered nonagonal number.

55140751 is a deficient number, since it is larger than the sum of its proper divisors (1570049).

55140751 is a wasteful number, since it uses less digits than its factorization.

55140751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 55140751 is about 7425.6818542138. The cubic root of 55140751 is about 380.6193754129.

The spelling of 55140751 in words is "fifty-five million, one hundred forty thousand, seven hundred fifty-one".