1655506051 has 12 divisors (see below), whose sum is σ = 1747076256. Its totient is φ = 1567972560.

The previous prime is 1655506037. The next prime is 1655506079. The reversal of 1655506051 is 1506055561.

It is not a de Polignac number, because 1655506051 - 2¹¹ = 1655504003 is a prime.

It is a super-2 number, since 2×1655506051² = 5481400569795229202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1655505998 and 1655506016.

It is not an unprimeable number, because it can be changed into a prime (1655506001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26841 + ... + 63493.

It is an arithmetic number, because the mean of its divisors is an integer number (145589688).

Almost surely, 2^1655506051 is an apocalyptic number.

1655506051 is a deficient number, since it is larger than the sum of its proper divisors (91570205).

1655506051 is an equidigital number, since it uses as much as digits as its factorization.

1655506051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36762 (or 36731 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 1655506051 is about 40687.9103788828. The cubic root of 1655506051 is about 1182.9786975554.

The spelling of 1655506051 in words is "one billion, six hundred fifty-five million, five hundred six thousand, fifty-one".