1552551457 has 4 divisors (see below), whose sum is σ = 1554076080. Its totient is φ = 1551026836.

The previous prime is 1552551439. The next prime is 1552551467. The reversal of 1552551457 is 7541552551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1552551457 - 2²⁷ = 1418333729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552551467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760783 + ... + 762820.

It is an arithmetic number, because the mean of its divisors is an integer number (388519020).

Almost surely, 2^1552551457 is an apocalyptic number.

It is an amenable number.

1552551457 is a deficient number, since it is larger than the sum of its proper divisors (1524623).

1552551457 is a wasteful number, since it uses less digits than its factorization.

1552551457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524622.

The product of its digits is 175000, while the sum is 40.

The square root of 1552551457 is about 39402.4295824509. The cubic root of 1552551457 is about 1157.9291871569.

The spelling of 1552551457 in words is "one billion, five hundred fifty-two million, five hundred fifty-one thousand, four hundred fifty-seven".