2551695954 has 32 divisors (see below), whose sum is σ = 5406440256. Its totient is φ = 800110080.

The previous prime is 2551695943. The next prime is 2551695959. The reversal of 2551695954 is 4595961552.

It is a happy number.

It is a super-2 number, since 2×2551695954² = 13022304483319940232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 2551695897 and 2551695906.

It is not an unprimeable number, because it can be changed into a prime (2551695959) 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, 228849 + ... + 239739.

It is an arithmetic number, because the mean of its divisors is an integer number (168951258).

Almost surely, 2^2551695954 is an apocalyptic number.

2551695954 is an abundant number, since it is smaller than the sum of its proper divisors (2854744302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2551695954 is a wasteful number, since it uses less digits than its factorization.

2551695954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13210.

The product of its digits is 2430000, while the sum is 51.

The square root of 2551695954 is about 50514.3143475194. The cubic root of 2551695954 is about 1366.5000177393.

The spelling of 2551695954 in words is "two billion, five hundred fifty-one million, six hundred ninety-five thousand, nine hundred fifty-four".