2603001028551 has 32 divisors (see below), whose sum is σ = 4331137671168. Its totient is φ = 1350936131040.

The previous prime is 2603001028547. The next prime is 2603001028561. The reversal of 2603001028551 is 1558201003062.

It is not a de Polignac number, because 2603001028551 - 2² = 2603001028547 is a prime.

It is a super-2 number, since 2×2603001028551² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2603001028501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5054731 + ... + 5545836.

It is an arithmetic number, because the mean of its divisors is an integer number (135348052224).

Almost surely, 2^{2603001028551} is an apocalyptic number.

2603001028551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2603001028551 is a deficient number, since it is larger than the sum of its proper divisors (1728136642617).

2603001028551 is a wasteful number, since it uses less digits than its factorization.

2603001028551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601651.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 2603001028551 in words is "two trillion, six hundred three billion, one million, twenty-eight thousand, five hundred fifty-one".