55151069 has 16 divisors (see below), whose sum is σ = 59685120. Its totient is φ = 50850240.

The previous prime is 55151039. The next prime is 55151081. The reversal of 55151069 is 96015155.

It is a de Polignac number, because none of the positive numbers 2^k-55151069 is a prime.

It is a super-2 number, since 2×55151069² = 6083280823685522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55151039) 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, 58139 + ... + 59079.

It is an arithmetic number, because the mean of its divisors is an integer number (3730320).

Almost surely, 2^55151069 is an apocalyptic number.

It is an amenable number.

55151069 is a deficient number, since it is larger than the sum of its proper divisors (4534051).

55151069 is a wasteful number, since it uses less digits than its factorization.

55151069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 55151069 is about 7426.3765727305. The cubic root of 55151069 is about 380.6431145756.

The spelling of 55151069 in words is "fifty-five million, one hundred fifty-one thousand, sixty-nine".