1902052497 has 32 divisors (see below), whose sum is σ = 2766614400. Its totient is φ = 1157667840.

The previous prime is 1902052469. The next prime is 1902052511. The reversal of 1902052497 is 7942502091.

It is a de Polignac number, because none of the positive numbers 2^k-1902052497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1902052697) 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, 323847 + ... + 329667.

It is an arithmetic number, because the mean of its divisors is an integer number (86456700).

Almost surely, 2^1902052497 is an apocalyptic number.

1902052497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1902052497 is a deficient number, since it is larger than the sum of its proper divisors (864561903).

1902052497 is a wasteful number, since it uses less digits than its factorization.

1902052497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6033.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1902052497 is about 43612.5268357613. The cubic root of 1902052497 is about 1239.0081595636.

It can be divided in two parts, 19020 and 52497, that added together give a palindrome (71517).

The spelling of 1902052497 in words is "one billion, nine hundred two million, fifty-two thousand, four hundred ninety-seven".