51003001155 has 16 divisors (see below), whose sum is σ = 81696824064. Its totient is φ = 27170926560.

The previous prime is 51003001121. The next prime is 51003001157. The reversal of 51003001155 is 55110030015.

It is not a de Polignac number, because 51003001155 - 2³⁴ = 33823131971 is a prime.

It is a super-2 number, since 2×51003001155² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51003001157) 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, 1903381 + ... + 1929990.

It is an arithmetic number, because the mean of its divisors is an integer number (5106051504).

Almost surely, 2^51003001155 is an apocalyptic number.

51003001155 is a deficient number, since it is larger than the sum of its proper divisors (30693822909).

51003001155 is a wasteful number, since it uses less digits than its factorization.

51003001155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834266.

The product of its (nonzero) digits is 375, while the sum is 21.

The spelling of 51003001155 in words is "fifty-one billion, three million, one thousand, one hundred fifty-five".